Devil is in the details as the saying goes. There is indeed a one pixel offset error in the displayed cursor time offsets.
To fix the gain issue, I will modify the logic to just use the smallest step possible for all ranges.
As for left/right not being waveform centric in relation to voltage and time base, I have the same issue, so perhaps we should just go ahead and change that (this is a left over from the 2.5 version).
Your color scheme looks nice. If you post the color codes, I can look at adopting preference schemes.
Thanks for your input!
P.S. There appears to be an artifact of some sort on your trigger axis.